Review on HITOP Dual Outlet Aquarium Air Pump - Whisper Adjustable Fish Tank Aerator for 20 to 100 Gallon (2 outlets) - Quiet Oxygen Pump with Accessories by Amber Davis

I ordered this pump because I was fed up with my current pump which is ridiculously noisy despite being advertised as a quiet pump. I can't believe how quiet this pump is. If it wasn't for the bubbles you wouldn't say it's on. I will order more because they only have two lines and I really need four. That being said, airstones work great and contain two long lengths of very soft tubing. I hope the hose doesn't kink because it's very soft and flexible. The only note: the pump is very powerful. That's usually good, but even on the lowest settings there's a heavy flow of bubbles. I will add an extra valve because one of my tanks is for fish that hurt/bite/get sick and I want to create a gentle environment for these fish. For a tiny little pump, it certainly has a lot of appeal. It is really incredible!